We're glad to have received an Atari POKEY from Ivo van Poorten of the Netherlands. Ivo reports that the chip came from a 1987 Atari 7800 Ballblazer cartridge. He was also quick to point out how Doug Neubauer and Mark Shiue left their names on the silicon.

The surface image below was produced from 81 separate images taken with a Nikon LV150 microscope with an LU Plan Fluor 20x objective and 1600x1200 camera. The 5131 x 4575 image is reduced to half the size of the original stitch. Each pixel in this image corresponds to an area about 755 nm on a side. A 1 mm scale bar, 6 um, and 12 um squares are provided at the bottom of the image.

The surface images were shot by Greg James in San Francisco, then transmitted to the UK where Christian Sattler corrected and stitched them together automatically using a combination of
Autopano-sift-C
and custom code. A map of stitched images is shown on the right.

If you enjoy these images and our work, please consider a donation to further this work. We're a small group of enthusiasts who devote our free time and money to preserve computer technology. Your support is a valuable contribution to computer history and to preserving classic computer hardware in the public domain.